Please provide complete information as applicable to your setup. • Hardware Platform: GTX 1080 • DeepStream Version: 5.0 • NVIDIA GPU Driver Version (valid for GPU only): 440.33.01 Hi, I am working on a pipeline which face detection as primary inference and generate face feature vector as secon…

You can also refer DeepStream 5.0 nvinferserver how to use upstream tensor meta as a model input if you are using nvinferserver. For nvinfer, we will support the feature in later release.

I have the same problem. Has anyone solved it yet? please help us.

Currently we don’t support customizing preprocess, we will discuss internally to see if we will support it later. If you use nvifnerserver, here is a WAR DeepStream 5.0 nvinferserver how to use upstream tensor meta as a model input

hi @bcao , Customizing preprocess will make deepstream very flexible and will be useful for many more test cases if it is supported later. The reference provided seems to be different than my use-case. It suggests how to provide one models output as input to other as ensemble model for trition(In t…

Hello @duttaneil16 , Have you found any solution about how to include preprocessing within deepstream? I am still stuck on this point since last May … [image] Adding Preprocessing to Frames RTSP DeepStream SDK Dear Jason, Thanks for your suggestion. You are…

hi @borelli.g92 The solution @bcao suggest is not what I was looking for. The only way I found was to do some kind of preprocessing in the original image itself using a custom plugin and pass it downstream. That is not a good way for most use cases as I preprocess in the Orig frame itself.

hi @duttaneil16 , thanks for your reply! I am also trying to customized one element of deepstream: gst-dsexample. Unfortunately I have a segmentation fault when I try to apply the opencv function. I thought the problem is related to opencv, thus I posted a question here: https://stackoverflow.com…

Hey @borelli.g92 the buffer is on the GPU so applying opencv filters may be issue. Either u have to use the buffer transform api of deepstream. Also look at the blur object option on dsexample there the objects are cropped and blurred.

Hi @duttaneil16 , Yes indeed, I have tried to look at that example. /* Cache the mapped data for CPU access */ NvBufSurfaceSyncForCpu (surface, frame_meta->batch_id, 0); in_mat = cv::Mat (surface->surfaceList[frame_meta->batch_id].planeParams.height[0], surf…

Hi again, one quick update. I have just realized that I get 5168 Segmentation fault (core dumped) Even if I try to copy the buffer instead of doing a transform: cv::Mat image_copy = in_mat.clone(); However, no segmentation fault at all if I use another opencv function such as: cv::filter2…

Hi @borelli.g92 , I would not know the answer to your query for sure, but I have also tried a few affine transformations (wrapAffine) on the crop of the orig frame. It worked for me. I won’t be able to tell if there is an issue with some specific transformation. I won’t be able to share any code as …

Data preprocessing before sgie

Accelerated Computing Intelligent Video Analytics DeepStream SDK

borelli.g92 February 21, 2021, 9:41am 10

Hello @duttaneil16 ,

Have you found any solution about how to include preprocessing within deepstream?
I am still stuck on this point since last May …

Thank you and have a nice day!

Topic		Replies	Views
Preprocessing image before feed it in SGIE DeepStream SDK	1	775	September 17, 2020
How to custom preprocess in SGIE base on Deepstream 5.0? DeepStream SDK	14	3591	April 20, 2021
SGIE,transfer image to Device from OpenCV custom preprocessing DeepStream SDK	7	1895	March 22, 2021
Adding Preprocessing to Frames RTSP DeepStream SDK	17	3669	March 2, 2021
Need advice: Image pre-processing between PGIE and SGIE. Custom SGIE output - feature-vector DeepStream SDK	11	2091	September 10, 2020
How to add preprocessing between 2 secondary gie? DeepStream SDK sdk , deepstream	3	711	October 13, 2023
Preprocess for sgie DeepStream SDK	1	848	November 20, 2020
Preprocess objects before SGIE inference DeepStream SDK	2	428	February 13, 2024
Preprocessing of frames - gst-dsexample DeepStream SDK	5	1669	March 13, 2021
Cannot obtain Classifier raw tensor output or classifier meta DeepStream SDK tensorrt , cuda , jetson-inference , gstreamer , jetson , deepstream	20	421	February 14, 2025

Data preprocessing before sgie

Related topics